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iChat versus cable modem - Mac Applications & Software

I've been impressed with iSight/iChat on DSL. I've read that cable modem has the drawback that upstream speeds are not nearly as good as downstream speeds. Does anyone have any experience to report on this? Would anyone with iChat on cable modem be willing to iChat with me? -- o ~ _-'\_ ~ Jon Claerbout: jon sep.stanford.edu (*)<(*) ~ http://sep.stanford.edu/sep/jon/...

  1. #1

    Default iChat versus cable modem


    I've been impressed with iSight/iChat on DSL.

    I've read that cable modem has the drawback that
    upstream speeds are not nearly as good as downstream speeds.

    Does anyone have any experience to report on this?

    Would anyone with iChat on cable modem be willing to iChat with me?


    --
    o ~
    _-'\_ ~ Jon Claerbout: jon sep.stanford.edu
    (*)<(*) ~ http://sep.stanford.edu/sep/jon/
    Jon Guest

  2. #2

    Default Re: iChat versus cable modem

    Jon Claerbout <Stanford.EDU> wrote:
     

    That's entirely dependent on the ISP. In fact, with most _DSL_
    providers you specifically get ADSL, where A stands for asymmetric,
    meaning that upload and download speeds differ, and that's generally a
    6-fold difference. For example, with BellSouth, maximum download speed
    is 1.5 Mbps while upload speed is limited to 256 Kbps.

    --
    Mike Rosenberg

    <http://www.macconsult.com> Macintosh consulting services for NE Florida
    <http://bogart-tribute.net> Tribute to Humphrey Bogart
    Mike Guest

  3. #3

    Default Re: iChat versus cable modem

    On 2003-09-30, Jon Claerbout <Stanford.EDU> wrote: 

    Around here cable provides 1.7Mbps down and 300Kbps up, while dsl
    provides either 768Kbps or 1.5Mbps down, depending on location, and
    128Kbps up. In other words if you're favorably located, the dsl
    up:down ratio is worse than cable; if you're not, the ratio is about
    the same but the speed in either direction is half what you get with
    cable.

    Long ago (by technology standards), there were some weird hybrid cable
    systems around in a few places that used the cable connection only for
    the down link and a phone connection for the up link. Those were
    severely asymmetric, but they were never very common. I don't know if
    any of those hybrid systems exist anymore.

    My cable connection works well for audio over iChat. I haven't tried
    video yet (no camera).



    Hugh Guest

  4. #4

    Default Re: iChat versus cable modem

    In article <bld210$i1l$Stanford.EDU>,
    Jon Claerbout <Stanford.EDU> wrote:
     

    Untrue. You are confusing cable with DSL.
     

    I rarely get on; too much work to do, sorry. There's a web site for
    people who want to connect with other iSight/iChat users for fun;
    somebody help me and recall what it is!
    --
    Cheers,
    _Chas_
    http://www.apple.com/switch
    non-spammers can write to chasm at mac (dot com)
    Charles Guest

  5. #5

    Default Re: iChat versus cable modem

    In article <tampabay.rr.com>,
    Charles Martin <org> wrote:
     
    >
    > Untrue. You are confusing cable with DSL.[/ref]

    Most cable providers also seem to impose a much more stringent cap on
    upstream traffic than on down. Seems to be primarily a mechanism to
    discourage users from running servers.

    G
    Gregory Guest

  6. #6

    Default Re: iChat versus cable modem

    In article <tampabay.rr.com>,
    Charles Martin <org> wrote:
     
    >
    > Untrue. You are confusing cable with DSL.[/ref]

    I'd like to correct myself here: cable speeds vary depending on various
    factors, including which ISP is used. I just did an FTP test with my own
    cable modem and came up with ~50KB/up and ~200KB/down.

    ADSL (the A stands for Asymetric) can also have widely varying speeds,
    usually much more dramatic than cable. Typical example in my area:
    59K/down, 12K/up.

    I should not have said you are confusing cable and DSL, only that both
    systems have different up/down streams depending on who your ISP is,
    where you are and how much you're paying (there are "tiers" of service,
    particularly with DSL). In my experience, cable has better speeds than
    DSL and in particular much better UP speeds than DSL.
    --
    Cheers,
    _Chas_
    http://www.apple.com/switch
    non-spammers can write to chasm at mac (dot com)
    Charles Guest

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